INSTALLATION
PLUMBING
An adhesive backed paper template is shipped with the unit and is used to locate the sink strainer holes. Use the following procedure to install
the heater unit to the holding vessel.
NOTE: The FR2 heater should be positioned with no more than 3' (914 mm) on either side when mounted under holding vessel. See Figure 4. A perforated water baffle (not supplied with unit) must be used to distribute the heated
water properly.
NOTE: Use one FR2 for a Hot Food Table up to 6' (1829 mm) long. Over 6' (1829 mm) minimum 2 units required.
CAUTION
Do not use extension pipes on the inlet
and outlet connections on heater units. Poor performance or unsafe conditions may occur.
1.Expose the adhesive back of the paper template and stick the template on the bottom of the holding vessel. Center the template with the words “Front Cover” positioned against the front inside wall of the vessel.
2.Center punch and drill a 3/4" (19 mm) pilot hole at each of the two center marks on the template.
3.Remove the template and cut a 2" (51 mm) diameter hole at each pilot hole location using a standard #ATV1756 Greenlee cutter.
NOTE: If a #ATV1756 Greenlee cutter is not available, use a standard Greenlee
(51 mm) diameter. File or ream holes as necessary to 2" (51 mm) diameter required for mounting sink strainers.
4.See Figure 5. In each of the holes, install
a male threaded sink strainer with a thin gasket between the strainer flange and the bottom
of the holding vessel.
5.Install two thick gaskets at the underside of the holding vessel along with a thin fiber gasket, and secure finger tight with the nut.
6.Attach the heater to the strainers loosely with the union nuts and
NOTE: Make sure rubber gaskets are positioned inside the union nuts and are not crimped.
3/4" (19 mm) holes |
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around periphery on |
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6" (152 mm) centers |
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Dotted line | 3/4" (19 mm) high baffle |
indicates the position of | with divider wall between |
perforated water baffle | inlet and outlet |
Figure 4. Hydro-Heater Water Baffle
Thin rubber washer | Sink or tank | 1/8" (3 mm) |
| offset | |
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3" (76 mm) |
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Thin fiber |
| Thick rubber |
washer | Nut | washers |
| (Qty. 2) | |
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| Union Gasket | |
| Union nut | |
Figure 5. Installing Sink Strainer
7.Tighten nuts on strainers securely.
8.Tighten union nuts securely.
9.Fill the holding vessel with water and check for leaks.
CAUTION
Do not overtighten unions or nuts.
Overtightening may cause leaks.
NOTE: A 3/4" (19 mm) hose or pipe may be connected to the heater sump drain and run to an open sight drain. The sump drain should not be permanently connected to the sanitary drain system. Check local plumbing code for proper drain installation. See MAINTENANCE for more information.
5 | Form No. |